Artificial lung of membrane type

Details Artificial lung of membrane type Artificial lung of membrane type

2005-11-22

2005-11-22

Bianco, Patricia (Department: 3761)

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

C422S044000, C604S006140, C210S321620, C261SDIG028

Reexamination Certificate

active

06967003

ABSTRACT:
A membrane artificial lung performs gas exchange between blood and a gas via the membrane by flowing the blood in one side of the membrane and flowing oxygen or an oxygen-containing gas in the other side of the membrane. The membrane has a hollow fiber membrane of poly-4-methylpentene-1 and an oxygen permeation rate Q(O2) at 25° C. of from 1×10−6to 3×10−3(cm3(STP)/cm2·sec·cmHg) and an ethanol flux of from 0.1 to 100 ml/min·m2. The membrane has, in the side of the blood flow, a surface having an ionic complex derived from: quaternary aliphatic alkylammonium salts; and heparin or a heparin derivative. The quaternary alkylammonium salts are a quaternary aliphatic alkylammonium salt having from 22 to 26 carbon atoms in total and a quaternary aliphatic alkylammonium salt having from 37 to 40 carbon atoms in total.

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